FUDMA JOURNAL OF SCIENCES最新文献_第8页

INFLUENCE OF MIX PROPORTION ON WORKABILITY OF LATERIZED CONCRETE 混合比例对加厚混凝土工作性的影响

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-29 DOI: 10.33003/fjs-2023-0706-1984

Amina Muhammad, O. S. Abejide, J. M. Kaura

{"title":"INFLUENCE OF MIX PROPORTION ON WORKABILITY OF LATERIZED CONCRETE","authors":"Amina Muhammad, O. S. Abejide, J. M. Kaura","doi":"10.33003/fjs-2023-0706-1984","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-1984","url":null,"abstract":"The increase in infrastructural development in the tropic has led to high demand for concrete production. Consequently, its constituents became very scarce and costly, especially the naturally occurring constituents. Laterite as an abundant naturally occurring material in the tropics is only put in use as filling material or in road construction. This study presents the determination of influence of nominal mix proportion (1:2:4, 1:1.5:3 and 1:1:2) at a constant water cement ratio of 0.5 with laterite fully replacing sand (fine aggregate). 72 numbers of cubes of size 100 mm were prepared for the different concretes, while 12 numbers were cast for each mix proportion and cured in the curing tank at 3, 7, 14, 28 days. Though the laterite was found to be a normal weight aggregate, it was also identified as A – 7 – 6, medium plastic clayey and porous material, with a specific gravity of 2.59. For the fresh concrete, the slump value and degree of workability were obtained using the Vee-bee consistometer and slump tests in both laterite and conventional concrete in all the three mix proportions (1:2:4 : 0.5, 1 : 1.5 : 3 : 0.5, 1 : 1 : 2 : 0.5). The Vee bee second for the mix proportions (1:2:4 , 1:1.5:3 and 1:1:2 ) are 13:18 , 09:44 and 6.0 for the conventional concrete while 14:47 , 12: 41 and 9:30 for Laterized concrete.","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":"38 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139146644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CONSTRUCTION AND PERFORMANCE EVALUATION OF AN INTEGRATED SOLAR COOKING AND DRYING SYSTEM 太阳能烹饪和干燥综合系统的建造与性能评估

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-29 DOI: 10.33003/fjs-2023-0706-2113

Inuwa Jibrin, M. M. Garba, G. M. Argungu, M. L. Mohammed, Usman Anas

{"title":"CONSTRUCTION AND PERFORMANCE EVALUATION OF AN INTEGRATED SOLAR COOKING AND DRYING SYSTEM","authors":"Inuwa Jibrin, M. M. Garba, G. M. Argungu, M. L. Mohammed, Usman Anas","doi":"10.33003/fjs-2023-0706-2113","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-2113","url":null,"abstract":"An integrated solar cooking and solar drying system was developed using locally available materials. The system performs both functions of cooking and drying simultaneously. Performance evaluation of the system was carried out using tomatoes for drying; while rice, beans and eggs were used to carryout cooking experiment. For the purpose of performance evaluation, total global radiation, ambient temperature, humidity, water temperature were monitored, taken and recorded. Results obtained from the system and that of the non-integrated systems were compared using excel as a statistical tool for analysis to ascertain the performance of the integrated system. The average temperatures recorded in the integrated system during drying were 45.3, 46.0 and 45.9, while that of the non-integrated system were 40.2, 39.9 and 39.7. The average temperatures recorded during cooking of egg, beans and rice using the integrated system were 83.1, 83.4 and 78.2, while that of the non-integrated system were 68.8, 86.3 and 65.0. This indicates higher heat generation and faster drying and cooking rates in the integrated system than the non-integrated system. The system has a total cost estimate of N30,600 with an added advantage of cooking and drying simultaneously. It is portable and can help in improving the ambient air quality. Furthermore, the integrated system will occupy less space and gives higher efficiency compared to the conventional single use systems.","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139143538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PHYTOCHEMICAL SCREENING, ANTIBACTERIAL AND INSECTICIDAL ACTIVITIES OF STEM BARK EXTRACTS OF BOSWELLIA DALZIELII HUTCHIN FROM KALTUNGO, NIGERIA 尼日利亚 Kaltungo 的 Boswellia dalzielii hutchin 茎皮提取物的植物化学筛选、抗菌和杀虫活性

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-28 DOI: 10.33003/fjs-2023-0706-2111

E. H. Mshelia, Watirahyel Pindar, K. Tadzabia, A. H. Mohammed, Omolide Ojo

{"title":"PHYTOCHEMICAL SCREENING, ANTIBACTERIAL AND INSECTICIDAL ACTIVITIES OF STEM BARK EXTRACTS OF BOSWELLIA DALZIELII HUTCHIN FROM KALTUNGO, NIGERIA","authors":"E. H. Mshelia, Watirahyel Pindar, K. Tadzabia, A. H. Mohammed, Omolide Ojo","doi":"10.33003/fjs-2023-0706-2111","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-2111","url":null,"abstract":"The importance of traditional herbal medicinal system has now gained attention in developed and developing countries. Boswellia dalzielii is a tree grows in the wild usually in the Savannah region of West Africa. These work assessed the phytochemical constituents, antibacterial and insecticidal activities of the stem bark extracts of Boswellia dalzielii. The plant extracts were obtained using soxhlet method with petroleum ether, ethyl acetate, acetone, ethanol and water as solvents for 10 hours while the phytochemicals and insecticidal activities were determined using standard methods. The phytochemical screening showed significant presence of carbohydrate in the ethanol and water extracts while significant amount of tannin was detected only in the ethanol extract. The petroleum ether and ethyl acetate showed absence of carbohydrate, tannins, phlobotannin, cyanogenic glycoside, chlorogenic acid and alkaloid. Significant amount of flavonoid was seen in the water extract, while only the ethanolic extract showed significant amount of cardiac glycoside and alkaloid. The acetone extract showed significant quantity of alkaloid and terpenes and steroids. The antibacterial screening showed that ethanol extract had the highest inhibitory activity. The petroleum ether extract had the least active components with no activity on the test organisms. The insecticidal activity of the plant extracts showed that acetone extract had the highest insecticidal activity on both the test insects. Camponotus consobrinus shows the highest percentage mortality of 75% at a concentration of 500µg and LC50 of 1.64x102µg followed by the Acanthscelides obtectus with the percentage mortality of 53% at a concentration of 250µg and...","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":"269 28‐34","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139152789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ASSESSING THE IMPACTS OF FLOOD ON THE COMMUNITIES IN DUTSIN-MA LOCAL GOVERNMENT AREA, KATSINA STATE, NIGERIA 评估洪水对尼日利亚卡齐纳州 Dutsin-Ma 地方政府所在地社区的影响

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-28 DOI: 10.33003/fjs-2023-0706-2109

A. W. Hassan, Abdulrazak Ahmed, Yunusa Halliru, Ahmad Yahya Zakari, Ibrahim Umar Jallo, J. Abdulkadir, Abdulmumin Sulaiman Umar

{"title":"ASSESSING THE IMPACTS OF FLOOD ON THE COMMUNITIES IN DUTSIN-MA LOCAL GOVERNMENT AREA, KATSINA STATE, NIGERIA","authors":"A. W. Hassan, Abdulrazak Ahmed, Yunusa Halliru, Ahmad Yahya Zakari, Ibrahim Umar Jallo, J. Abdulkadir, Abdulmumin Sulaiman Umar","doi":"10.33003/fjs-2023-0706-2109","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-2109","url":null,"abstract":"Floods is one of the most disturbing environmental hazards in Dutsin Ma Local Government Area of Katsina State, Nigeria. The resulting effect is on property loss, economy and the environment. On this basis, this research was carried out to evaluate flood risk areas in Dutsin-ma local government area of Katsina State. a questionnaire survey gathered information regarding flood in the research area. geospatial approaches were used to obtain Satellite imagery of 2020 from United States Geological Survey (USGS) Google Earth platform. Multi Criteria Evaluation approach was used to develop flood risk-vulnerability map for the Dutsin-Ma. Findings from this study shows that 19% of the respondents believed that relocating people to higher grounds is the best way to mitigate the impact of flood, about 22.8% of the respondents believed that construction and maintenance of new drainages is a good option. Result for vulnerability assessment shows that Makera South, Makera North, Garhi East, Garhi West, Sakarya, Kitibawa, Gandi and Makwanta are identified as very high-risk areas. Other high-risk areas include Gidan Gamawa, Garin Mallam, Koranwaya, Wawaye, Zaki, Dage, Taka, Korafawa, Unguwan Nassarawa, Gago, Mawashi and Karki. The study recommended that Distribution of adequate relief materials and public enlightenment would assist to reduce the impact of in the study area. Result of this study can be beneficial to relevant professional bodies and agencies such as town planners, land use land cover planners, emergency, and contingency planners and the general public for control and management of flood.","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":"101 4‐6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139149225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The EVALUATION OF LIMNOLOGICAL CHARACTERISTICS OF OPA RESERVOIR TRIBUTARIES IN RELATION TO PHYTOPLANKTON COMMUNITY STRUCTURE IN ITS CATCHMENT AREA, SOUTHWEST, NIGERIA 尼日利亚西南部奥帕储藏区与浮游生物群落结构相关的底栖生物特征评价

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-28 DOI: 10.33003/fjs-2023-0706-2073

Emmanuel Abiodun Adewumi, Patricia O. Adewumi, T. Adesakin, J. O. Oyewumi, A. A. Adedeji

引用次数: 0

ASSESSMENT OF SEDIMENTS AND GEOMORPHOLOGY OF FRESHWATER BODIES IN NORTHERN GUINEA SAVANNA ZONE, NIGERIA 尼日利亚北部几内亚热带草原区淡水水体沉积物和地貌评估

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-28 DOI: 10.33003/fjs-2023-0706-2060

Kalen Ephraim Audu, Dahiru Sani, I. Gadzama, Mohammed A. Galadima, T. Sule

引用次数: 0

MODELLING AND OPTIMIZATION OF LOCUST BEAN POD ASH CONTENT IN ASPHALT MIXTURE USING SURFACE RESPONSE METHODOLOGY 利用表面响应方法对沥青混合料中的槐豆荚灰分含量进行建模和优化

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-27 DOI: 10.33003/fjs-2023-0706-2055

A. A. Murana, J. Ochepo, A. A. Isah, K. E. Ibedu

{"title":"MODELLING AND OPTIMIZATION OF LOCUST BEAN POD ASH CONTENT IN ASPHALT MIXTURE USING SURFACE RESPONSE METHODOLOGY","authors":"A. A. Murana, J. Ochepo, A. A. Isah, K. E. Ibedu","doi":"10.33003/fjs-2023-0706-2055","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-2055","url":null,"abstract":"Consumption of agricultural products generates large quantities of waste daily, and proper disposal mechanism is of great need. Introduction of waste pozzolanic material in asphaltic mixture creates a chemical reaction between bitumen and mineral filler as a result of its texture, geometry, chemical and mineralogical compositions. Mineral fillers play a significant role in the engineering properties of hot mix asphalt. The aim of the present study is to assess the effect of locust bean pod ash (LBPA) as mineral filler on the Marshall properties of hot mix asphalt. X-Ray fluorescence was used for characterization of LBPA, the results showed that LBPA oxide composition are comparable to that of granite dust which has been used as a conventional filler material. To accomplish this objective response surface methodology (RSM) was employed to examine the impact of LBPA on the conventional Marshall properties (Stability, Flow, VMA, Pa, VFB) of LBPA-modified asphalt mixture. By using Multi-objective process, a fifth regression model was considered with a p-value < 5% for all responses. ANOVA revealed that the LBPA had a significant effect on the Marshal properties investigated. After optimization the optimum values of LBPA and bitumen content are 40% and 50% and respectively. The predicated Marshall properties values for stability, flow, VMA, Pa and VFB are 7.639kN, 3.892mm, 18.311%, 3.63%, 78.549% respectively. The findings of this study showed that LBPA is suitable as a mineral filler in asphaltic mixture.","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HEAVY METALS IN TOMATO, BELL PEPPER AND ONION PRODUCED UNDER THE KANO RIVER IRRIGATION PROJECT 卡诺河灌溉项目生产的番茄、甜椒和洋葱中的重金属含量

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-27 DOI: 10.33003/fjs-2023-0706-2107

N. Abdullahi, M. Dandago, M. S. Gambo, S. A. Sarki, P. G. Idah

{"title":"HEAVY METALS IN TOMATO, BELL PEPPER AND ONION PRODUCED UNDER THE KANO RIVER IRRIGATION PROJECT","authors":"N. Abdullahi, M. Dandago, M. S. Gambo, S. A. Sarki, P. G. Idah","doi":"10.33003/fjs-2023-0706-2107","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-2107","url":null,"abstract":"The presence of heavy metals (HMs) in food crops is an issue of public health significance, which is progressively evolving into a worldwide predicament. The continuous discharge of HMs into the environment through a range of anthropogenic practices and natural occurrences has raised concerns regarding food safety and human well-being. HMs exhibit substantial resistance and when they infiltrate the food chain, they establish a sustainable cycle within the food web. Samples of Tomato, Bell pepper and Onion were taken from 10 different locations across the irrigation scheme. Concentrations of Zn, Pb, Cd, Ni, Co, Cu, Cr and Hg were determined in Tomato, Bell pepper, Onion bulb and Onion leaf samples. The mean concentrations of Zn, Pb, Cd, Ni, Co, Cu, Cr in Tomato are 2.437, 0.869, 0.367, 1.325, 0.649, 2.090, 15.255 mg/kg respectively. Average concentrations of these HMs in Bell pepper are 3.713, 1.225, 0.361, 1.619, 0.382, 3.071, 9.279 mg/kg respectively. While in Onion bulb are 4.123, 0.878, 0.282, 2.438, 1.175, 5.848, 28.219 mg/kg respectively. Mean concentrations observed in Onion leaves are 3.697, 1.001, 0.716, 1.145, 1.017, 1.191, 10.993 mg/kg for Zn, Pb, Cd, Ni, Co, Cu, Cr respectively. The orders for HMs accumulations in vegetables are Cr>Zn>Cu>Ni>Pb>Co>Cd for Tomato and Bell pepper samples, Cr>Cu>Zn>Ni>Co>Pb>Cd for Onion bulb and Cr>Zn>Cu>Ni>Co>Pb>Cd for Onion leaves. Hg was not detected in all the vegetable samples. The mean concentrations for Zn, Cd and Cr exceeded permissible limits in all the vegetable samples.","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":"12 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139154116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

ENHANCING USER EXPERIENCE THROUGH SENTIMENT ANALYSIS FOR KATSINA STATE TRANSPORT AGENCY: A TEXTBLOB APPROACH 通过对卡齐纳州交通局的情感分析提升用户体验：一种文本球方法

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-27 DOI: 10.33003/fjs-2023-0706-2057

Emmy Danny Ajik, Aminu Bashir Suleiman, Muhammad Ibrahim

引用次数: 0

FLEXURAL STRENGTH OF BAMBOO AND STEEL REINFORCED CONCRETE BEAM 竹和钢筋混凝土梁的抗弯强度

FUDMA JOURNAL OF SCIENCES Pub Date : 2023-12-27 DOI: 10.33003/fjs-2023-0706-2063

Chukwu Mbazor, J. M. Kaura, A. Ocholi, J. Ochepo, K. E. Ibedu

{"title":"FLEXURAL STRENGTH OF BAMBOO AND STEEL REINFORCED CONCRETE BEAM","authors":"Chukwu Mbazor, J. M. Kaura, A. Ocholi, J. Ochepo, K. E. Ibedu","doi":"10.33003/fjs-2023-0706-2063","DOIUrl":"https://doi.org/10.33003/fjs-2023-0706-2063","url":null,"abstract":"There is no doubt that construction and building industries are the main energy and materials consumers of any country. In sustainable development, both the immediate and imminent needs are adequately taken into consideration. Sequel to the fact that concrete is weak in tension, reinforcement is inevitable to compensate for the deficiency. This paper purposes to comparing the flexural properties of concrete beams reinforced with bamboo strips and steel bars. Bamboo strips were found to be a close replacement to steel for light-weight constructions. This research consists of 100 x 100 x 450mm reinforced concrete beams with varying percentages of steel served as reference. Three beams were cast for each bamboo/Steel reinforcement ratio for each curing age making a total of Ninety-Six beams for flexural properties test. Three cubes were prepaid for every curing age summing up to Twenty-Four cubes for compressive test. The area of Bamboo reinforcement equivalent to steel was calculated via the equivalence of the force that could withstand the bending stresses which was also resisted by corresponding bamboo area. Steel stirrups were used to carter for shear in the beams. Flexural and compressive strengths at 7-, 14-, 21- and 28-days have been taken into consideration for comparison purpose. The graphs from the results were plotted and the suitability of bamboo reinforced beam was discoursed regarding the failure types. Results from the research reveal that bamboo can be used in low-cost constructions.","PeriodicalId":282447,"journal":{"name":"FUDMA JOURNAL OF SCIENCES","volume":"180 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139153881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0